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Technical Data Sheet
1757-9251 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include body_width: 2.050 INCHES NOMINAL IN, body_height: 1.290 INCHES NOMINAL IN, body_length: 4.050 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED, mounting_method: THREADED HOLE(S) SINGLE GROUP, frequency_rating: 57.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-101-8205, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
1757-9251
NSN: 5950-01-101-8205
FSC: 5950
CAGE: 08241 — LOCKHEED MARTIN CORP LOCKHEED MARTIN MISSION SYSTEMS (USA)
SPECIFICATIONS
body_width2.050 INCHES NOMINAL IN
body_height1.290 INCHES NOMINAL IN
body_length4.050 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating57.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT
nominal_thread_size0.138 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
impedance_rating_in_ohms750000.0 MINIMUM SINGLE COMPONENT SINGLE PRIMARY
thread_quantity_per_inch32 SINGLE GROUP
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
mounting_facility_quantity2 SINGLE GROUP
NSN5950-01-101-8205
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER,RADIO FREQUENCY INTERFERE TITLE COMPONENT PN 1757-9251 MFR FILTER,RADIO FREQUENCY
KEY FEATURES
DC RESISTANCE RATING IN OHMS: 80.000 ALL COMPONENTS ALL SECONDARY
FREQUENCY RATING: 57.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
BODY LENGTH: 4.050 INCHES NOMINAL IN
INCLOSURE TYPE: HERMETICALLY SEALED
BODY WIDTH: 2.050 INCHES NOMINAL IN
BODY HEIGHT: 1.290 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
DC RESISTANCE RATING IN OHMS80.000 ALL COMPONENTS ALL SECONDARY
FREQUENCY RATING57.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
DC RESISTANCE RATING IN OHMS8000.000 SINGLE COMPONENT SINGLE PRIMARY
BODY LENGTH4.050 INCHES NOMINAL IN
INCLOSURE TYPEHERMETICALLY SEALED
BODY WIDTH2.050 INCHES NOMINAL IN
BODY HEIGHT1.290 INCHES NOMINAL IN
MOUNTING FACILITY QUANTITY2 SINGLE GROUP
IMPEDANCE RATING IN OHMS750000.0 MINIMUM SINGLE COMPONENT SINGLE PRIMARY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
A-250Interchangeable
interchangeable cross-reference
interchangeable
138011-15Interchangeable
interchangeable cross-reference
interchangeable
74394Interchangeable
interchangeable cross-reference
interchangeable
M-3932Interchangeable
interchangeable cross-reference
interchangeable
24P233829-21-11Interchangeable
interchangeable cross-reference
interchangeable
PBT7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1757-9251?
1757-9251 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace 1757-9251?
There are 13 known substitutes for 1757-9251: A-250, 138011-15, 74394 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1757-9251?
1757-9251 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-101-8205. This indicates validated use in U.S. government and defense supply chains.
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